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体验新版 GitCode,发现更多精彩内容 >>
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782b9f5c
编写于
12月 06, 2017
作者:
N
Niko Matsakis
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电子邮件补丁
差异文件
escape-argument: improve comment per arielb1's suggestion
上级
dac59ac9
变更
2
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2 changed file
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16 addition
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14 deletion
+16
-14
src/test/ui/nll/closure-requirements/escape-argument.rs
src/test/ui/nll/closure-requirements/escape-argument.rs
+4
-2
src/test/ui/nll/closure-requirements/escape-argument.stderr
src/test/ui/nll/closure-requirements/escape-argument.stderr
+12
-12
未找到文件。
src/test/ui/nll/closure-requirements/escape-argument.rs
浏览文件 @
782b9f5c
...
...
@@ -17,8 +17,10 @@
// enough to store `y`.
//
// The error is reported in the caller: invoking the closure links the
// lifetime of the borrow that is given as `y` and forces it to live
// too long.
// lifetime of the variable that is given as `y` (via subtyping) and
// thus forces the corresponding borrow to live too long. This is
// basically checking that the MIR type checker correctly enforces the
// closure signature.
// compile-flags:-Znll -Zborrowck=mir -Zverbose
...
...
src/test/ui/nll/closure-requirements/escape-argument.stderr
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782b9f5c
note: External requirements
--> $DIR/escape-argument.rs:3
4
:38
--> $DIR/escape-argument.rs:3
6
:38
|
3
4
| let mut closure = expect_sig(|p, y| *p = y);
3
6
| let mut closure = expect_sig(|p, y| *p = y);
| ^^^^^^^^^^^^^
|
= note: defining type: DefId(0/1:9 ~ escape_argument[317d]::test[0]::{{closure}}[0]) with closure substs [
...
...
@@ -11,26 +11,26 @@ note: External requirements
= note: number of external vids: 1
note: No external requirements
--> $DIR/escape-argument.rs:
28
:1
--> $DIR/escape-argument.rs:
30
:1
|
28
| / fn test() {
29
| | let x = 44;
3
0
| | let mut p = &x;
3
1
| |
30
| / fn test() {
31
| | let x = 44;
3
2
| | let mut p = &x;
3
3
| |
... |
39
| | deref(p);
4
0
| | }
41
| | deref(p);
4
2
| | }
| |_^
|
= note: defining type: DefId(0/0:3 ~ escape_argument[317d]::test[0]) with substs []
error[E0597]: borrowed value does not live long enough
--> $DIR/escape-argument.rs:3
6
:6
--> $DIR/escape-argument.rs:3
8
:6
|
3
3
| let y = 22;
3
5
| let y = 22;
| - temporary value created here
...
3
6
| }
3
8
| }
| ^ temporary value dropped here while still borrowed
|
= note: consider using a `let` binding to increase its lifetime
...
...
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